I thought I would share....
When I was trying to figure out the problem with Blackie's desire to slow roast one of it's 88's I figured it could be a PSU issue. My solution was a Dual PSU Mod. Took me a few hours of research and a few more to set it up.
Here is the result of my efforts.
http://img716.imageshack.us/img716/9679/dualpsumod.png
The second PSU in the middle drive bay is an IBM 225W Small Form Factor unit. The two PSUs are tied together via their respective 24 pin ATX connectors, using pin 16 (Power On) and pin 15 (Ground). The mod works really well although it did not help the heat problem.
I ran the mod in Blackie for about two days. I plan on using the mod with the upgrade. I still have to work on a better way of passing the A/C supply through the case. Probably modding an expansion slot cover with a custom double-female pass through connector arrangement.